
Air purifiers are electronic devices that remove contaminants from the air. These devices are commonly believed as being beneficial to allergy sufferers and asthmatics, and at reducing or eliminating second-hand tobacco smoke.
There are different processes of varying effectiveness that are used to purify the air. Different processes will remove different contaminants, so there is an advantage in using more than one process in a purifier. As for buying an air purifier, there are a number of factors that you will want to take into consideration. Some of the key factors are outlined below for your convenience.
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Recommended Air Purifiers
Best overall air purifier:
Whirlpool AP51030K Whispure Air Purifier
- Model name AP51030K is renamed to WP500P
- Whisper classic design
- User friendly electronic soft touch control
- True HEPA 0.3 micron filtration
- Filters air 4.8 times per hour in a 500 square feet room
- 4 Fan speeds, plus sleep and turbo modes
- Quiet operation on all speed settings
- Easy to use electronic controls
- High performance in removing particles including pet dander, dust mites, pollen, ragweed, mold spores, and other microscopic irritants
- Clean Air Delivery Rate (CEDR) 315
Best budget air purifier:
Honeywell Compact Air Purifier with Permanent HEPA Filter, HHT-011
- Compact tabletop air purifier for rooms up to 85 square feet in size
- Permanent HEPA-type filter
- 3-stage filtration system first helps clean the air by using a washable pre-filter to capture large airborne particles
- Acceptable noise level
Best air purifier for larger rooms:
Honeywell 50250-S Pure HEPA Round Air Purifier
- LARGE ROOM AIR PURIFIER: This HEPA purifier captures up to 99. 97% of...
- SPECIAL FEATURES: This purifier features 3 air cleaning levels,...
- ODOR REDUCING PREFILTER: An activated carbon pre-filter captures larger...
- Good for rooms up to 390 square feet in size
- Permanent HEPA filter
- Works effectively removing dust, pet hair, pollen, smoke, and other airborne particles 0.3 microns or larger
- Acceptable noise level when it runs on low & medium speeds, but quite noisy on high speed
- Intelli Check filter monitor to remind you when to replace the filter
1. How Effective Is It In Cleaning The Air?
The first thing you will want to know will be the effectiveness of the air purifier. Is it good at removing all bad smells (like pet litter, mold, etc.). How big a room can it purify?
Caution: Air cleaning is a highly confusing science. It’s hard to say what works best or is most effective. Some manufacturers may present misleading information. Therefore it isn’t so easy to determine which air cleaner is best for your specific needs.
Hint: The best thing you can do is to browse through some of the REAL users’ comments/reviews listed in the Air Purifier Department of the Amazon.com marketplace.
2. How Quiet Is It? Can It Be Used At Night Without Disturbing Your Sleep?
Most people who purchase an air purifier will want to leave it on for the night. They may purchase it for their own or their kids’ allergies and will want it to run silently while they sleep.
3. How Big A Room Can It Purify?
You will also want to know if the air purifier is able to clean the air in a specific room. The product specification list should provide this information like “this purifier can successfully clean the air in our 15×15 room”.
4. Does It Have A HEPA Filter?
HEPA filters are very effective at removing allergens and definitely sought after by most consumers.
5. Is The Filter Easy To Clean?
Cleaning the filter is the only maintenance an air purifier will require. If the filter is easy to remove and clean, that will be a good plus. In addition, some newer models allow users to simply vacuum the filter without even touching it.
- WE WON'T RELEASE ANY PRODUCT WITHOUT THE LOGO: Each of our products...
- HIGH PERFORMANCE: Enjoy fresh air in 12 minutes with the Core 300 True HEPA...
- FIND RELIEF: Ease sneezing, congestion, and other allergy symptoms caused...
- WE WON'T RELEASE ANY PRODUCT WITHOUT THE LOGO: Each of our products...
- REFRESH & RELAX: If you struggle with allergies, low-quality sleep,...
- MATTER OF MINUTES: Breathe freely and sleep better as the air purifier uses...
- ADVANCED AIR CLEANING TECH: Combines a HEPA-13 filter that captures 99.97%...
- CLEAN AIR IN MINUTES: Filters up to 630 SQFT per hour, and AHAM-Verified to...
- AUTO MODE: Automatically senses the air quality and adjusts the fan up or...
- 【High-Efficiency Air Purifier for Small, Medium and Large...
- 【22dB Ultra Quiet & Sleep Mode】-🌿 In sleep mode, the sound is as low...
- 【Energy Saving & Money Saving】-🌿 At 10 cents kWh in the city, the...
- Efficient H13 Purification: Equipped with an H13 True HEPA Filter and a...
- Dual Air Treatment: Our air purifier not only uses H13 True HEPA filter to...
- Feel The Air Change: Our air purifier comes equipped with a built-in PM2.5...
6. How Frequently Should Users Change The Filter?
Most air purifiers have filters that should be replaced with a new one at specific intervals. This is the maintenance cost of the product and of course the lower the frequency, the better it is for consumers. For instance, an air purifier that costs more than other, similar models may have a filter that lasts much more than the others. In that case, that model will provide a cost advantage in the long run. Plus, some new models have permanent filters that do not need replacing, and that is a huge bonus.
7. Is It Effective At Low Speeds?
Some manufacturers say that their air purifier is extremely quiet, but forget to mention that the quietness is there only at the minimum settings and that you may need to run the purifier at high speeds to get the best results!
8. Is There A Filter Replacement Indicator?
Some higher-priced air purifier models come with a filter replacement indicator that lights up to warn the user that they need to replace the filter. This is a useful feature to have that does take the guess work out.
9. Are There Dust Sensors And Air Quality Monitors In The Model?
Some models have dust sensors and air quality monitors that automate the cleaning process. The purifier measures the dust and pollutant levels and goes on/off or speeds up/slows down depending on the amount of pollutants. This, of course, is a very handy feature to have and will be seen as a high value feature.
10. Does It Have Ionizer Or Ozone Generator Features?
Certain air purifiers have ionizer and/or ozone generator features that are considered more effective in cleaning the air. However, ionizers and ozone generators produce ozone gas which can be detrimental for people with pulmonary problems. Ionizers produce less ozone gas, so they are considered better in this sense.
11. Is The Air Purifier Compact? Are Controls Easy To Use?
People don’t want to haul gigantic appliances around their homes, so it’s better to have a small, compact and lightweight air purifier that can fit any space (like on a desk or a bookshelf). Plus, the less complicated the controls are, the better it is for the users.
- WE WON'T RELEASE ANY PRODUCT WITHOUT THE LOGO: Each of our products...
- HIGH PERFORMANCE: Enjoy fresh air in 12 minutes with the Core 300 True HEPA...
- FIND RELIEF: Ease sneezing, congestion, and other allergy symptoms caused...
- Efficient Particle Filtration: The AROEVE air purifier utilizes a HEPA...
- High Circulation Rate: With dual-channel and 360-degree air inlets...
- Low Decibel Operation: The AROEVE air purifier operates quietly, especially...
- ADVANCED AIR CLEANING TECH: Combines a HEPA-13 filter that captures 99.97%...
- CLEAN AIR IN MINUTES: Filters up to 630 SQFT per hour, and AHAM-Verified to...
- AUTO MODE: Automatically senses the air quality and adjusts the fan speed...
- WE WON'T RELEASE ANY PRODUCT WITHOUT THE LOGO: Each of our products...
- REFRESH & RELAX: If you struggle with allergies, low-quality sleep,...
- MATTER OF MINUTES: Breathe freely and sleep better as the air purifier uses...
- SLEEP WELL: Trap airborne allergens that cause congestion and coughing....
- PET OWNERS FRIENDLY: Pet Mode cleans the air and conserves energy, while...
- 3-STAGE FILTRATION: Cleaning the Washable Pre-Filter helps the 3-stage...
12. Is There Any New Technology Deployed In The Unit?
Sometimes you will see air purifiers that have new and innovative features that other models don’t have (like the new permanent filters deployed in certain models). If that is the case, try to evaluate the benefits of such new technologies to see if it really offers value, since you’ll most probably be paying a lot more money for it.