You’re weighing seven budget air purifiers under $100 for 2026, from compact USB-C models to H13 units for small rooms. You’ll compare CADR and ACH figures, check filter costs, and note extras like app control, aroma pads, or night lights. With so many choices, you’ll want a clear plan for placement and maintenance. Stay tuned—the details that matter most could change your entire setup.
Key Takeaways
- Prioritize true HEPA filters (H13/H14) with a multi‑stage design for effective filtration under $100.
- Expect compact units covering roughly 200–300 sq ft, with some models reaching 430 sq ft efficiency.
- Choose low wattage and dedicated sleep modes to stay quiet and energy-efficient.
- Factor in filter replacement costs and packaging to estimate 1–2 year total ownership.
- Popular under-$100 options include LEVOIT Core Mini-P, MOOKA M01, FULMINARE, GoveeLife Mini, and Home & Car HEPA.
| LEVOIT Core Mini-P Air Purifier for Bedroom |  | Best Sleep | Noise level (dB): 25–45 dB | Filtration type: Pre-Filter + HEPA + Activated Carbon | Room coverage: Up to 255 sq ft | VIEW LATEST PRICE | Read Our Analysis |
| FULMINARE H13 HEPA Air Purifier with Night Light |  | Quiet Sleep Mode | Noise level (dB): ~24 dB (sleep mode) | Filtration type: H13 True HEPA | Room coverage: Up to 215 sq ft | VIEW LATEST PRICE | Read Our Analysis |
| GoveeLife Mini Air Purifier with App Alexa Control |  | Smart & Compact | Noise level (dB): Sleep mode as low as 24 dB | Filtration type: (Not explicitly stated; includes pre-installed filter; aroma support) | Room coverage: Purifies about 376 sq ft per hour (room coverage implied; design targets bedroom) | VIEW LATEST PRICE | Read Our Analysis |
| Small Air Purifier for Bedroom and Kitchen |  | Ultra-Compact Purifier | Noise level (dB): Maximum 24 dB | Filtration type: Dual-channel 360° intake with odor/pollution filtration | Room coverage: Not stated (implied smaller personal/room use) | VIEW LATEST PRICE | Read Our Analysis |
| MOOKA H13 Portable Air Purifier M01 430 Sq.Ft |  | Large-Capacity Portable | Noise level (dB): Sleep mode 15 dB | Filtration type: 3-stage H13 True HEPA | Room coverage: Up to 430 sq ft | VIEW LATEST PRICE | Read Our Analysis |
| Home & Car HEPA Air Purifier with USB-C |  | Versatile 2-in-1 | Noise level (dB): 22 dB (sleep mode) | Filtration type: H13 True HEPA | Room coverage: Up to 215 sq ft | VIEW LATEST PRICE | Read Our Analysis |
| Small Home Air Purifier for Desk and Dorm |  | Budget Desk Purifier | Noise level (dB): 28 dB | Filtration type: True H13 HEPA | Room coverage: Not stated (desktop/personal use) | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
LEVOIT Core Mini-P Air Purifier for Bedroom
For budget buyers, the LEVOIT Core Mini-P delivers a 3-in-1 filter plus a fragrance sponge. You get a pre-filter, a main HEPA filter, and an activated carbon stage that neutralizes odors. It targets smoke, allergens, pet dander, dust, and fine particles down to 0.1 micrometer in rooms up to 255 square feet. Powered by a 7-watt, energy-efficient design, it runs quietly at 25–45 dB. The purifier ships with a pre-installed filter, a stored power adapter, and a user manual. It’s ETL certified, compact at 6.5 by 6.5 by 10.4 inches, and easy to maintain for long-term, low-effort use.
- Noise level (dB):25–45 dB
- Filtration type:Pre-Filter + HEPA + Activated Carbon
- Room coverage:Up to 255 sq ft
- Aromatherapy capability:Aromatherapy-capable (fragrance sponge)
- Power/Power source:Internal power adapter stored inside unit (100–240V)
- Controls/Smart features:Manual button control
- Additional Feature:Auto-off sleep display
- Additional Feature:Fragrance sponge included
- Additional Feature:Power adapter stored inside
FULMINARE H13 HEPA Air Purifier with Night Light
The FULMINARE H13 HEPA Air Purifier with Night Light stands out for its true HEPA filtration and built‑in night light, making it a smart pick for budget shoppers who want quiet, effective air cleaning in small to medium rooms. Its dual‑channel technology and 360° air outlet refresh air five times per hour, covering up to 215 ft² (20 m²). In sleep mode, it runs quietly at about 24 dB, and the independent night light remains soft for babies and kids. Set a 2, 4, 8, 10, or 12 hour timer and place it in a bedroom or office. Remove the filter packaging before first use; check the adapter under the base; replace filters every 3 months, PU-P05.
- Noise level (dB):~24 dB (sleep mode)
- Filtration type:H13 True HEPA
- Room coverage:Up to 215 sq ft
- Aromatherapy capability:Not indicated
- Power/Power source:Charging adapter stored under bottom base cover
- Controls/Smart features:Manual controls + timer settings
- Additional Feature:Independent night light
- Additional Feature:Five timer settings
- Additional Feature:Adapter stored under base
GoveeLife Mini Air Purifier with App Alexa Control
Smart, compact, and budget-friendly, the GoveeLife Mini Air Purifier fits easily into small bedrooms while offering app and Alexa control for hands-free use. You control power, fan speed, timer, and a custom mode from the app, plus sleep mode for quiet nights. It uses a dual-channel 360° intake to clean 376 sq ft per hour, and it pairs with your other smart devices for IFTTT automation. The unit is Energy Star certified and ETL listed, with a compact footprint and aroma pad for optional fragrance. Note: 5 GHz Wi‑Fi isn’t supported; power before pairing. Keep box handy during setup.
- Noise level (dB):Sleep mode as low as 24 dB
- Filtration type:(Not explicitly stated; includes pre-installed filter; aroma support)
- Room coverage:Purifies about 376 sq ft per hour (room coverage implied; design targets bedroom)
- Aromatherapy capability:Aroma pad included
- Power/Power source:Power adapter included (stored at bottom)
- Controls/Smart features:App control (GoveeLife), Alexa/IFTTT compatibility
- Additional Feature:App control
- Additional Feature:Alexa & IFTTT compatible
- Additional Feature:Aroma pad included
Small Air Purifier for Bedroom and Kitchen
If you want a compact purifier that fits a bedroom or kitchen, this budget option shines. It uses a dual-channel 360° air intake and removes 99.98% of pet odors, dust, smoke, and hair, making small spaces feel cleaner. The unit operates quietly, with a maximum of 24 dB, so light sleepers won’t be disturbed. It’s a simple one-step setup: plug in a USB power cable, no power button needed. Measuring 4.3 by 4.3 by 7.5 inches and weighing 470 grams, it’s portable and energy-efficient. An aromatherapy tablet area adds fragrance while you purify. Great for bedrooms or small kitchens.
- Noise level (dB):Maximum 24 dB
- Filtration type:Dual-channel 360° intake with odor/pollution filtration
- Room coverage:Not stated (implied smaller personal/room use)
- Aromatherapy capability:Aromatherapy tablet area
- Power/Power source:USB power cable (no separate button, plug-and-use)
- Controls/Smart features:Manual operation (one-step plug, no button)
- Additional Feature:USB-powered only
- Additional Feature:No power button
- Additional Feature:Replaceable aromatherapy tablets
MOOKA H13 Portable Air Purifier M01 430 Sq.Ft
Powerful enough for spaces up to 430 sq ft, the MOOKA H13 purifier delivers true 3-stage HEPA filtration. You get a 360° air intake and advanced air-spiral tech that pull dust, smoke, pollen, and pet dander into the filter. It purifies rooms up to 430 sq. ft., with increased efficiency for healthier indoor air. It’s compact and travel-friendly, uses a USB-C cable, and works with power banks, car chargers, or a computer. It runs on universal voltages 110–240V and has no internal battery, so it isn’t rechargeable. Sleep mode at 15 dB, four timers, four speeds, aroma pad too.
- Noise level (dB):Sleep mode 15 dB
- Filtration type:3-stage H13 True HEPA
- Room coverage:Up to 430 sq ft
- Aromatherapy capability:Aroma pad/Fragrance sponge
- Power/Power source:USB Type-C cable included; wall plug not included
- Controls/Smart features:Manual with timer options and aroma pad
- Additional Feature:USB-C powered
- Additional Feature:No internal battery
- Additional Feature:2-year warranty
Home & Car HEPA Air Purifier with USB-C
Designed for small spaces, the Home & Car HEPA Air Purifier with USB-C excels where you need clean air without bulk. In cars, on desks, or in dorm rooms, it cleans up to 215 sq ft (20 m²) with six air changes per hour, keeping bedrooms and pet areas fresher. Its H13 True HEPA filter captures 99.97% of particles ≥0.3 μm, while 360° vortex air outlet guarantees efficient circulation. At 22 dB, it stays ultra-quiet; sleep mode dims lights, and night light stays gentle. One button controls two speeds; USB-C charges, with red/blue/green indicators. Ideal for gifting and use.
- Noise level (dB):22 dB (sleep mode)
- Filtration type:H13 True HEPA
- Room coverage:Up to 215 sq ft
- Aromatherapy capability:Aromatherapy not mentioned
- Power/Power source:USB-C charging
- Controls/Smart features:One-button operation with color indicators; safety lock
- Additional Feature:USB-C charging
- Additional Feature:Rotating safety lock
- Additional Feature:Night light mode
Small Home Air Purifier for Desk and Dorm
Ideal for tight spaces, this small desk purifier fits neatly on a dorm desk or office table. You get a compact unit weighing 1.1 pounds with a corded design, so it stays powered but isn’t rechargeable. It uses a True H13 HEPA filter that captures up to 99.97% of particles 0.3 microns and larger, including pet dander, dust, pollen, and odors. Replace the filter every 1–3 months using code B0B3RN5RZH for easy tracking. It doubles as an aromatherapy diffuser, and its aroma pad accommodates essential oils. Whisper-quiet operation reaches 28 dB, with an optional blue night light for ambiance.
- Noise level (dB):28 dB
- Filtration type:True H13 HEPA
- Room coverage:Not stated (desktop/personal use)
- Aromatherapy capability:Aroma pad (aromatherapy diffuser)
- Power/Power source:Corded power (not rechargeable)
- Controls/Smart features:Button-based with optional night light
- Additional Feature:Aromatherapy diffuser 2-in-1
- Additional Feature:Whisper-quiet 28 dB
- Additional Feature:Replacement filter code available
Factors to Consider When Choosing Budget Air Purifiers Under $100
Start with price point under $100 and compare filter costs and yearly run-time. Make sure it fits your room, like 200 sq ft needing 200+ CADR for effective cleaning. Weigh filtration and noise; HEPA helps, keep noise under 40 dB in bedrooms, and energy use stays low.
Price Point Considerations
Because most budget air purifiers under $100 are aimed at small rooms—roughly 200 to 300 square feet—you should set realistic expectations for coverage and CADR. In this price range, prioritize units with a true HEPA or H13-style filter rather than vague HEPA-like claims, since real filtration matters for allergens and smoke. Expect lower CADR than pricier models, and plan for ongoing costs: replacement filters every 3 to 6 months can add $15 to $50+ annually. Check energy use and noise, as many budget units stay under 10 W on low but get louder at higher speeds. Look for basic certifications or metrics (CADR, 0.3 µm removal, ETL/CE) to verify performance rather than marketing. A careful comparison can save money and improve daily air quality.
Room Size Fit
To pick a budget purifier that really fits your space, compare its rated coverage to your room size and aim for at least equal or higher square footage. Match the purifier’s recommended coverage (square feet) to your room’s floor area—pick a unit rated for at least the same square footage or higher to guarantee adequate air changes. Check CADR or ACH; aim for a CADR that supports at least 4–6 air changes per hour for bedrooms and living areas. Remember ceiling height affects volume—multiply floor area by height (ft) and compare to the purifier’s capacity or ACH, not floor area alone. If you place it in an open-plan area, size up by 20–30% from the single-room rating to account for air mixing and adjacent room leakage.
Filtration Type Choice
Opt for a true HEPA filter (H13/H14) or a genuine HEPA-type when possible, since certified HEPA captures at least 99.97% of particles 0.3 microns or larger, while cheaper “HEPA-like” options can be far less efficient. If odors or VOCs matter, look for an activated carbon or charcoal stage alongside the HEPA. Check the particle size rating and the filter class, because smaller capture sizes mean better ultrafine particle filtration. Prefer units with a multi-stage design (pre-filter plus HEPA plus carbon) to trap hair and extend media life. Also verify genuine replacement filter availability and the recommended interval, commonly 3–12 months, to keep costs predictable. Cheaper upfront units may save money now, but if replacements are scarce or pricey, you’ll pay later and overall costs.
Noise Level Expectations
Now that you’ve checked filter quality and replacement costs, it’s time to take into account noise levels. Budget purifiers under $100 usually list noise from about 22 dB in sleep modes to 45 dB at higher speeds. Look for the low‑noise figures for bedroom use and compare them to the normal operation range, often 25–45 dB. Remember that a 10 dB difference sounds about twice as loud, so a 35 dB unit will be noticeably louder than a 25 dB one in the same room. Seek a sleep or night mode with dimmed lights, and verify whether that mode uses the lowest spec. Also note ratings assume ~1 m distance; placement matters for your actual sound level. Ask for demo tests in your space.
Energy Efficiency Focus
Energy efficiency matters more than you might think, especially under $100. Look for purifiers with low rated power, typically 5–15 W, to keep electricity use modest while still delivering useful air changes. Compare CADR or similar air-change metrics to room size; higher changes per hour at lower wattage equal better energy efficiency. Choose models with multiple fan speeds and a low-speed sleep mode (noise around 20–30 dB) so overnight use stays cheap. Prefer units with timers or programmable schedules and auto modes tied to sensors, so power only surges when needed. Check Energy Star ratings or estimate annual cost by watts × hours × 365 × your rate. For example, a 10 W purifier used 8 hours a year at 0.12$/kWh that adds up.
Replacement Filter Cost
Start by reading the ongoing costs, since replacement filters come up every 3–6 months and can add up quickly. Check recurring cost: replacement HEPA-style and activated carbon filters typically need replacement every 3–6 months, so annual filter spend can equal a significant fraction of the original purifier price. Compare filter types and counts — true HEPA or H13 filters and multi-stage carbon pre-filters cost more than single-layer filters, and units with separate aroma pads or additional specialty filters often require extra, differently priced replacements. Look for clear pricing and SKU information from sellers (price per replacement filter, multi-pack discounts, and shipping) to calculate a 1–2 year total cost of ownership before buying. Verify filter lifespan claims (hours or months) and factor in your household conditions (pets, smoking, cooking) because heavier contamination shortens filter life and raises replacement frequency and cost. Also check compatibility for standard sizes to avoid pricey substitutions that exist.
Bottom Line
Choosing a budget purifier under $100 means balancing CADR, filter cost, and features. Look for models with true HEPA or H13, at least 1 ACH per hour in small rooms, and a washable or replaceable filter every 6–12 months. Check for USB-C power, quiet sleep mode, and easy placement. Expect CADR around 40–120 CFM in bedrooms up to 150 sq ft. Compare energy use, and plan for 1–2 replacements per year to keep costs predictable.
