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I priced out my first "real" air purifier the way most people do: I opened Amazon, sorted by relevance, and got hit with a wall of units ranging from under fifty dollars to well over a thousand, with almost nothing explaining why. It took me a wrecked filter budget and two years of actually running these machines to understand that the number on the box is the smallest part of the story. A cheap purifier with expensive filters can cost more over five years than a pricier unit with a smart filtration design — and nobody puts that math on the listing page.
This guide is built around that gap. Instead of one price tag, you're getting a tiered framework — budget, mid-range, premium, and whole-home — matched to room size and mapped to Clean Air Delivery Rate, because CADR is what actually determines whether you're paying for performance or paying for a badge on the box. We'll also walk through the number almost no listing shows you: total cost of ownership, meaning the unit price plus filter replacements plus electricity over several years of real use.
The market splits cleanly into four bands once you strip out marketing noise: small-room budget units, medium-room mid-range machines, large-room premium purifiers, and whole-home systems tied into your HVAC. Each band has a defining set of specs that justifies the jump in price — more CADR per square foot, more filtration stages, smarter sensors, or dramatically longer-lasting filters. Knowing which lever you're actually paying for is the difference between a purifier that earns its keep and one that just sits there humming.
This guide is for anyone who has stared at a page of air purifiers between $79 and $999 and wondered what, specifically, separates them — first-time buyers sizing a bedroom unit, and upgraders wondering if a large-room premium machine is worth the jump from their current small-room model.
Quick Reference: Price Tiers by Room Size
| Tier | Typical room coverage | What you're paying for | Best for |
|---|---|---|---|
| Budget ($50–$150) | Up to ~250 sq ft | Basic 3-stage filtration, minimal smart features | Bedrooms, home offices, dorms |
| Mid-range ($150–$300) | ~350–650 sq ft | Higher CADR, washable pre-filters, toggleable ionizers, some smart controls | Living rooms, open-plan spaces, pet owners |
| Premium ($400–$1,200) | ~800–1,600+ sq ft | Large-space CADR, dual filtration systems, medical-grade HEPA, long-life filters | Large open floors, chemical sensitivity, wildfire-prone regions |
| Whole-home / in-duct ($400–$12,000 installed) | Entire house | HVAC-integrated media filtration, silent whole-house coverage | New builds, renovations, whole-house allergy control |
According to 2026 data from Angi, "installing a whole-house air purifier costs $419 to $12,000, though most homeowners spend an average of $2,610" — a category most portable-purifier shoppers never actually need, but one worth understanding before you assume "expensive" always means "portable and premium."
How Air Purifier Pricing Actually Works
Before comparing specific units, it helps to know what you're actually paying for when the price climbs. Five factors do almost all of the work:
CADR and room coverage. Clean Air Delivery Rate measures how much filtered air a unit pushes out per minute, tested separately for smoke, dust, and pollen under AHAM's standard. A unit rated for 200 sq ft at a proper 4–5 air changes per hour costs less to build than one rated for 1,500 sq ft, because it needs a smaller motor and less filter media — this is the single biggest driver of sticker price.
Filtration stages and media quality. A basic 3-stage system (pre-filter, True HEPA, thin carbon layer) costs less to manufacture than a 4-stage system with a washable pre-filter, a heavier carbon bed for odor control, and a separate ionization stage. More carbon by weight — the kind used in activated-carbon-focused units — means better odor and VOC performance, and it means a pricier filter cartridge down the line.
True HEPA vs. HEPA-type. True HEPA captures 99.97% of particles at 0.3 microns; "HEPA-type" or "HEPA-like" media is a looser, cheaper standard that doesn't meet that bar. Worth noting: several major brands quietly dropped "True HEPA" language from marketing in 2023 after a manufacturer dispute, even though independent lab testing still measures HEPA-grade performance on the affected units. The labeling shifted; the filtration generally didn't.
Smart features. WiFi connectivity, app control, laser PM2.5 sensors, and voice-assistant compatibility add real cost to a unit — often $30–$70 over an equivalent non-smart model with the same CADR. They're genuinely useful for auto-adjusting fan speed to conditions, but they're a convenience premium, not a filtration upgrade.
Brand and engineering. Medical-grade brands built around chemical sensitivity and ultrafine particles — the kind covered in dedicated deep dives — charge a premium for filter media rated well beyond HEPA and for filters engineered to last years instead of months. That premium shows up on day one, but it can partially reverse itself on the five-year filter bill, which we'll get to below.
None of these factors matter in isolation — what matters is CADR-per-dollar relative to your actual room, plus what you'll spend keeping it running. That second number is where most buyers get surprised.
Budget Tier: Small Rooms and Bedrooms ($50–$150)
This tier covers single bedrooms, home offices, and small living spaces up to roughly 250 sq ft at a proper air-change rate. The engineering compromise here is straightforward: smaller motor, single-cartridge filtration, and few or no smart features — which is exactly the right trade for a room this size.
Levoit Core 300 / Core 300-P
- CADR: 141 CFM (AHAM-verified — roughly 143 smoke / 153 dust / 167 pollen)
- Coverage: 219 sq ft at a proper 4.8 air changes per hour
- Filtration: 3-in-1 pre-filter + True HEPA-grade media + activated carbon, replaced as a single cartridge
- Noise: 24 dB on sleep mode, up to 50 dB on high
- No ionizer, CARB compliant, ozone-free
- Filter replacement: roughly every 6–8 months, in the $30–45/year range for genuine cartridges, less for reputable third-party options
Pros: sits at the top of its class for reliability, genuinely quiet at sleep speed, filter market is competitive enough that generics hold up within a few percent of genuine CADR.
Cons: single all-in-one filter means you can't isolate a worn-out carbon layer from a still-good HEPA layer; no smart features at all.
Verdict: the default small-room pick for a reason — it does one job, does it quietly, and doesn't ask much of your filter budget.
Perfect for: bedrooms, nurseries-adjacent rooms, first-time buyers who don't want app setup.
GermGuardian AC4825 / AC4825E
- CADR: roughly 99 smoke / 118 dust / 125 pollen
- Coverage: 153 sq ft at a proper air-change rate (up to ~743 sq ft at a much lower rate)
- Filtration: True HEPA + activated carbon (fabric-based, not pelletized) + an optional low-wattage UV-C bulb
- Noise: up to 55 dB on high; slightly higher power draw for its class
- CARB and Zero Ozone certified, 3-year warranty
Pros: genuinely cheap to buy and to replace filters for, well-regarded as a bare-bones performer.
Cons: the UV-C bulb is the classic "price-inflating feature that doesn't deliver" — the exposure time and bulb strength in a home unit are too limited to meaningfully add anything a HEPA filter isn't already doing; CADR trails the Core 300 at a similar price point.
Verdict: adequate, but the Core 300 offers more filtration power for a comparable spend — treat the UV-C badge as marketing, not a reason to choose this one.
Perfect for: buyers who specifically want a lower sticker price and don't mind the smaller coverage number.
The DIY outlier worth knowing about
If your budget is genuinely tight, the Corsi-Rosenthal box — a box fan strapped to several MERV-13 furnace filters — is a recurring favorite in air-quality communities, often assembled for less than the cheapest commercial unit here while delivering competitive CADR for its footprint. It's bulky and not something you'll want in a living room, but it's worth knowing it exists before you assume $50 is the floor.
Mid-Range Tier: Medium Rooms ($150–$300)
This is where most households actually land — living rooms, open kitchen-diners, and larger bedrooms in the 350–650 sq ft range. The jump in price buys you meaningfully higher CADR, washable pre-filters (which cut down on cartridge replacement frequency), and in several cases a toggleable ionizer.
Coway Airmega AP-1512HH "Mighty"
- CADR (AHAM): 233 smoke / 246 dust / 240 pollen
- Coverage: 361 sq ft at 4.8 air changes per hour, up to 1,748 sq ft at a lower rate
- Filtration: washable pre-filter + deodorization carbon + True HEPA + a Vital Ion ionizer that can be switched off
- Noise: 24.4–53.8 dB; ionizer emits roughly 9 ppb of ozone when enabled, well under CARB's 50 ppb ceiling
- Filter replacement: one filter set roughly every 6–12 months, among the lowest ongoing filter costs in its class
Pros: Wirecutter's Tim Heffernan has named it a top pick for ten consecutive years running testing across more than fifty purifiers; washable pre-filter and low genuine-filter cost make it the strongest CADR-per-dollar pick in this tier.
Cons: the AQI indicator light runs bright for some bedrooms; power draw at top speed is noticeably higher than some rivals; if ozone sensitivity is a concern, plan to leave the ionizer disabled.
Verdict: the mid-range benchmark other purifiers get measured against, and for good reason — it pairs strong CADR with the cheapest long-term filter math in this price band.
Perfect for: living rooms, allergy-prone households, anyone who wants the "just works" mid-range pick.
Coway Airmega 200M
- CADR: 246 dust / 233 smoke / 240 pollen
- Coverage: 361 sq ft at 4.8 air changes per hour
- Filtration: washable pre-filter + activated carbon + True HEPA + bipolar ionizer
- Noise: 24.4 dB at low speed; no WiFi
Pros: essentially the same internal filtration as the AP-1512HH in a more compact housing, with the same low filter cost.
Cons: no app connectivity if that matters to you; slightly harder to find as a standalone listing.
Verdict: a legitimate alternative to the Mighty if you don't need smart features and want a smaller footprint.
Perfect for: compact rooms that still need the Mighty's filtration power.
Winix 5500-2 and Winix 5510
- Winix 5500-2 CADR: 232 smoke / 243 dust / 246 pollen, 360 sq ft coverage, with a washable AOC carbon filter — a genuine rarity in this price range
- Winix 5510 (current US model) CADR: roughly 253, 392 sq ft coverage, adds WiFi app control and an air-quality sensor
- Both include a toggleable, CARB-certified PlasmaWave ionizer
- Filter replacement: genuine cartridges run roughly $50/year, generics closer to $15/year
Pros: the 5500-2's washable carbon filter is a genuine cost-saver over years of ownership, and community sentiment around this line runs unusually positive.
Cons: Winix confirmed to press in May 2025 that the 5500-2 has been discontinued in the US and Canada — remaining stock is worth buying only if it's noticeably cheaper than the 5510, since OEM filters for the 5500-2 remain guaranteed through 2032. The 5510 is quieter on paper at low speed but louder at max than the outgoing model.
Verdict: buy the 5510 unless you find 5500-2 stock at a real discount — either way, this is one of the strongest mid-range CADR-per-dollar options once you factor in filter costs.
Perfect for: buyers who specifically want a washable-carbon filter to cut long-term costs, or who want app control at a mid-range price.
Levoit Core 400S / 400S-P
- CADR (AHAM): 231 smoke / 240 dust / 259 pollen
- Coverage: 358 sq ft at 4.8 air changes per hour, up to 1,733 sq ft at a lower rate
- Filtration: pre-filter + H13-grade HEPA + honeycomb activated carbon, no ionizer
- Features: laser PM2.5 sensor, VeSync app, Alexa/Google compatibility
- Filter replacement: roughly every 6–9 months, the priciest cartridge in the Core lineup
Pros: brings genuine smart features and a laser sensor without moving into premium pricing; strong coverage for its size class.
Cons: filter cartridge cost is the highest in the Core family, which erodes some of the value versus the cheaper Core 300 if you don't need the extra coverage or sensor.
Verdict: worth the step up from the Core 300 specifically for larger rooms or households that want automatic fan adjustment — otherwise the Core 300 remains the better dollar-for-dollar pick.
Perfect for: larger bedrooms or open-plan rooms where smart auto-adjustment earns its keep.
Premium Tier: Large Rooms and Open Floors ($400–$1,200)
Once you're covering 800+ sq ft — open-plan main floors, large living rooms, converted lofts — you're paying for genuinely larger motors, dual-filter systems, and in some cases medical-grade filtration rated for chemical sensitivity or heavy wildfire smoke, covered in more depth in our large-room buying guide.
Coway Airmega 400 / 400S
- CADR: roughly 328–350 smoke and dust, 350–400 pollen
- Coverage: 1,560 sq ft at 2 air changes per hour, 3,120 sq ft at a lower rate
- Filtration: washable pre-filter + dual Max2 filters, each combining True HEPA and activated carbon
- The 400S adds WiFi, an app, and a PM2.5 sensor over the base 400
- Filter replacement: roughly $70–80/year for the two-filter set, plus meaningfully higher electricity draw than the smaller Coway units
Pros: one of the few large-room units that reliably hits its rated CADR in real, oversized rooms; dual filtration means each cartridge does less work individually.
Cons: no app on the base 400 model; combined filter-plus-electricity cost is meaningfully higher than the mid-range tier, which matters over several years of continuous use.
Verdict: the large-room equivalent of the AP-1512HH — pricier to run, but it's one of the few units in this size class that actually delivers on its coverage claim.
Perfect for: large open-plan main floors, whole-floor coverage without going whole-home.
Blueair Blue Pure 211i Max
- Coverage: up to 3,000 sq ft at a lower air-change rate
- Filtration: HEPASilent dual mechanical-and-electrostatic filtration plus a particle-and-carbon filter
- Noise: under 30 dB on some settings — notably quiet for its coverage class
- AHAM Verified, Zero Ozone certified
- Filter replacement: roughly $40–200/year depending on configuration, every 6–12 months
Pros: unusually quiet for a large-coverage unit, strong airflow, washable pre-filter.
Cons: the electrostatic stage relies on ionization technology, which is a recurring concern in air-quality communities even where certified within CARB limits — worth disabling if you're sensitive to that.
Verdict: a strong pick specifically if quiet operation at large-room CADR is your priority.
Perfect for: large rooms where noise at higher fan speeds is a dealbreaker.
Honeywell HPA300
- Coverage: 465 sq ft (AHAM), True HEPA, four cleaning levels including a Turbo setting
- No smart features on the base model
- Filter replacement: genuine HEPA 3-packs plus carbon pre-filters run close to $90–120/year, one of the higher ongoing costs in the portable class — third-party sets bring this down to roughly $40–45/year
Pros: solid, no-frills large-room performance with a well-established filter ecosystem.
Cons: genuine filter costs are the recurring complaint here — budget for them before you buy, or plan on reputable third-party cartridges from day one.
Verdict: a capable large-room performer, but check the annual filter math against the Coway and Blueair options above before committing.
Perfect for: buyers who prioritize brand familiarity and don't mind a higher filter bill.
Ultra-Premium: Medical-Grade Units ($800+)
This tier exists for a narrower use case than most buyers actually have: chemical sensitivity, heavy VOC exposure, or a strong preference for filtration rated well beyond standard HEPA. It's genuinely overkill for typical dust, pollen, and pet-dander needs — but for the right household, the long-life filters can partially offset the higher entry price.
IQAir HealthPro Plus / XE
- Coverage: up to 1,125 sq ft
- Filtration: PreMax pre-filter + a V5-Cell gas-and-odor filter with over 5 lbs of activated carbon + HyperHEPA media rated to 0.003 microns at 99.5%+ efficiency
- No ionizer, no ozone byproduct, six fan speeds, 10-year warranty
- Filter replacement: the pre-filter roughly every 18 months, the carbon cell every 2 years, and the HyperHEPA filter itself lasting up to 4 years — filters that last far longer than anything in the mid-range tier
Pros: filtration rated well beyond standard HEPA, genuinely long filter intervals that offset some of the entry cost over time.
Cons: highest entry price in this guide; using off-brand filters has been shown to meaningfully cut airflow and will void the warranty — this is not a unit to cheap out on consumables for.
Verdict: justified for chemical sensitivity, heavy VOC concerns, or ultrafine-particle priorities — overkill for routine dust and allergy control.
Perfect for: households managing MCS, asthma triggered by ultrafine particles, or heavy chemical off-gassing.
Austin Air HealthMate HM400
- Coverage: roughly 500 sq ft at 400 CFM
- Filtration: two pre-filters + 60 sq ft of medical-grade HEPA media + up to 15 lbs of activated carbon and zeolite
- Steel housing, 360° intake, no ionizer or ozone byproduct
- Filter replacement: a single all-in-one filter lasts up to 5 years, with each replacement running roughly $80–110/year amortized — one of the longest filter intervals in this guide
Pros: the 5-year filter life is a genuine long-term cost advantage — some analyses put its 5-year total cost of ownership several hundred dollars below the IQAir above.
Cons: no timers, sensors, or app — this is a utilitarian, single-purpose machine.
Verdict: the strongest long-term value in the ultra-premium tier if you can live without smart features, particularly for wildfire smoke and heavy VOC loads.
Perfect for: wildfire-prone regions, heavy off-gassing situations, buyers who want to "set and forget" for years at a time.
Whole-Home / In-Duct Systems
If you're renovating or building new, an in-duct media air cleaner installed directly into your HVAC return — like an AprilAire 2210, 2410, or 2416 — filters your entire house silently, using your existing blower instead of a standalone motor. These are rated by MERV instead of CADR (MERV 13 on the 2210, up to MERV 16 on the 2416) and trap up to 99% of common allergy and asthma triggers with roughly 30 times the media surface area of a standard 1-inch furnace filter.
The unit itself runs anywhere from $100–$600, but professional installation is typically required, and per Angi's 2026 data, fully installed whole-house systems range from $419 to $12,000, averaging around $2,610. Replacement filters run roughly $50–75/year for genuine cartridges, changed about once a year — the appeal here is invisible, whole-house coverage with essentially no maintenance ritual, at the cost of a much larger upfront installation bill than any portable unit in this guide.
This category makes sense for new construction, major renovations, or households that want allergy control in every room without a purifier in every room. For anyone renting, or not planning HVAC work, portable units above will get you there faster and far cheaper.
The Hidden Cost: Filters, Electricity, and Total Cost of Ownership
Here's the number that almost never makes it onto a product listing: what a purifier costs to actually run. Consumer Reports notes that mechanical filters "can be expensive, at times ranging from $80 to more than $200… replaced every six to 12 months" — and that's before electricity draw, which climbs meaningfully for larger units run continuously.
The trap works like this: a cheaper unit with a proprietary filter that needs replacing every four months can genuinely cost more over five years than a pricier unit with a filter that lasts a full year. Washable pre-filters — like the ones on the Coway Mighty and Winix 5500-2 — reduce how often you're buying a full cartridge, which is exactly why those two units post some of the lowest ongoing costs in this guide despite sitting mid-tier on entry price.
A rough five-year framework, filters and electricity combined:
- Budget tier (Core 300, GermGuardian): lowest entry cost, but frequent full-cartridge replacements keep the running cost from ever disappearing.
- Mid-range tier (Coway Mighty, Winix 5510): the sweet spot — washable pre-filters and reasonably priced cartridges make this tier the strongest CADR-per-dollar over time, not just on day one.
- Premium tier (Coway 400, Blueair 211i Max, Honeywell HPA300): higher electricity draw and pricier filter sets; worth it only if you genuinely need the coverage.
- Ultra-premium (IQAir, Austin Air): highest entry price, but filters that last 2–5 years can close the gap significantly over a long ownership horizon — Austin Air's single 5-year filter is one of the most competitive long-run numbers in this entire guide, according to several independent cost analyses.
The takeaway: don't buy on entry price alone. Before checking out, look up the specific replacement filter for the model you're considering and how often the manufacturer says to change it — that single number tells you more about your real cost than the tag on the box.
Ionizers, UV-C, and Other Price-Inflating Features That Don't Always Deliver
A handful of features consistently add to the price tag without adding much real filtration benefit, and it's worth knowing which is which before you pay extra for one.
Ionizers. According to the EPA's Guide to Air Cleaners in the Home, "air filters that remove small particles — such as high-efficiency particulate air (HEPA) filters — are effective in removing allergens from the air, without posing any ozone concerns," while ion generators "do not remove gases or odors, and may be relatively ineffective in removing large particles such as pollen and house dust allergens." Ionizers relocate particles onto nearby surfaces rather than capturing them, and while CARB-certified units (Coway, Winix) keep ozone output well under regulatory limits and let you switch the feature off, it's a feature you're paying for that doesn't add filtration power — treat it as optional, not a reason to upgrade.
UV-C bulbs. Independent reviewers consistently find the UV-C add-on on budget units like the GermGuardian AC4825 too weak and too brief in exposure time to meaningfully add germ-killing power beyond what the HEPA filter already provides. It's a marketing line item more than a functional upgrade at this scale.
"HEPA-type" vs. True HEPA. Genuine True HEPA media is tested to 99.97% capture at 0.3 microns. Anything labeled "HEPA-type" or "HEPA-like" is a looser, cheaper standard and one of the easiest ways a listing can look competitively priced while actually cutting a corner on filtration.
Smart connectivity. Genuinely useful for auto-adjusting fan speed to real-time air quality, but it's a convenience premium on top of the filtration hardware — don't let a laser sensor and an app be the deciding factor over CADR and filter cost if your budget is tight.
Which Tier Should You Choose?
- Single bedroom or home office (under 250 sq ft), tight budget: the Levoit Core 300 — strong CADR for the size, cheap and competitive filter market.
- Living room or open kitchen-diner (350–650 sq ft), want the best long-term value: the Coway AP-1512HH Mighty — the strongest CADR-per-dollar once filter costs are factored in, and a decade of independent testing behind it.
- Same size room, want app control and a PM2.5 display: the Winix 5510 or Levoit Core 400S-P — pay a modest premium for smart features on top of solid mid-range CADR.
- Large open floor (800+ sq ft): the Coway Airmega 400/400S for guaranteed real-world coverage, or the Blueair 211i Max if quiet operation at that scale matters more than filter cost.
- Chemical sensitivity, heavy VOCs, or wildfire-prone region: the Austin Air HealthMate for the best long-run filter economics, or the IQAir HealthPro Plus if ultrafine-particle capture beyond standard HEPA is the priority.
- New build or major renovation, want whole-house coverage with zero visible units: an AprilAire in-duct system tied into your HVAC, budgeted as part of the renovation rather than a single-item purchase.
Frequently Asked Questions
Q: Is a more expensive air purifier always better?
Not for typical needs. For standard dust, pollen, pet dander, and everyday odor control, a well-chosen mid-range unit delivers close to the same real-world air quality improvement as a premium one, at a fraction of the cost. Premium and ultra-premium tiers earn their price specifically for large-room coverage, heavy VOC loads, or chemical sensitivity — not general allergy management.
Q: What's the real difference between a $100 purifier and a $250 one?
Mostly coverage and filter design. The $250 tier typically covers a meaningfully larger room, adds a washable pre-filter that reduces how often you buy a full cartridge, and sometimes includes a toggleable ionizer or smart sensor. The core filtration technology — True HEPA plus activated carbon — is often similar; what changes is how much air the unit can move and how the filter system is engineered.
Q: Do I need to budget for filter replacements separately?
Yes, and this is the number most buyers skip. Genuine replacement filters typically run $30 to well over $100 per year depending on the model, and a unit with a cheaper filter but a shorter replacement interval can cost more over five years than a pricier unit with a longer-lasting cartridge. Check the specific replacement filter cost and interval before buying, not just the sticker price of the unit.
Q: Are whole-house air purifiers worth the cost compared to a portable unit?
Only if you're already doing HVAC work or building new. Whole-house systems provide invisible, house-wide coverage but come with a meaningfully higher installed cost — commonly averaging in the thousands of dollars once professional installation is included. For most renters and existing homeowners, one or two well-sized portable units cover the same rooms at a fraction of the price.
Q: Should I pay extra for an ionizer or UV-C feature?
Generally, no. Ionizers relocate rather than remove particles and, per the EPA, aren't effective against gases, odors, or larger allergens — CARB-certified units keep ozone output low and let you disable the feature, so it's not harmful, just optional. UV-C bulbs on budget units are widely considered too weak to meaningfully add anything beyond what the HEPA filter is already doing. Prioritize CADR and filter cost over either feature.
Q: What happened to the Winix 5500-2, and should I still buy it?
Winix confirmed in May 2025 that the 5500-2 has been discontinued in the US and Canada, though OEM filters remain guaranteed through 2032 and the model is still sold in some other markets. Its successor, the Winix 5510, is the current default recommendation — buy remaining 5500-2 stock only if it's priced noticeably below the 5510, since you'd be trading its quieter top-speed operation and washable carbon filter against the 5510's smart features and slightly higher CADR.
Conclusion
The price of an air purifier maps almost perfectly onto three things: how much room it's built to cover, how many filtration stages and how much carbon it's carrying, and how long its filters last before you're back on Amazon buying a replacement. Budget units do a genuinely good job in small rooms and don't need to do more than that. Mid-range machines — the Coway Mighty and Winix line especially — hit the strongest balance of upfront cost and long-term filter economics for the rooms most people actually need to cover. Premium and ultra-premium units earn their price only when the room size or the air-quality challenge genuinely calls for it.
If there's one habit worth taking from this guide, it's to stop evaluating a purifier by its sticker price alone and start checking the replacement filter cost and interval before you buy — that's the number that actually determines what the unit costs you over the years you'll own it. Once you know your room size and which tier that puts you in, our room size guide and full buyer's guide can help you narrow the exact model from there.
