The Levoit 400S is our top pick for an air purifier that effectively captures allergens from your home. It has earned an impressive score of 5 stars out of 5 on Amazon, with reviewers commenting on its ability to clean the air from odors and dust. The Levoit 400S has a 360-degree air intake and can filter contaminants from the air in spaces up to 1,095 square feet in a very short time. It is equipped with a washable prefilter, a carbon filter, and a HEPA H13 filter, which is the reference standard for effectively improving indoor air quality.
This purifier also has PECO-HEPA Tri-Power filters, which use photoelectrochemical oxidation (PECO) to eliminate odors and remove contaminants from indoor air at the molecular level. The external prefilter is capable of capturing pet hair, can be rinsed with water for regular maintenance, and is available in five muted colors. It has a HEPA filter that removes up to 99.97% of air particles as small as 0.3 microns from the air, eliminating dirt, pollen, pet dander and smoke. The air purifier comes with some standard features, such as sleep mode, smartphone app, real-time air quality indicators, and filter indicators.
It is essential to choose an air filter with a high-efficiency particle accelerator (HEPA) filter to prevent pet dander from circulating throughout the house. If the HPA100 isn't big enough for you, this filter also comes in a larger HPA200 for rooms up to 310 square feet and in an HPA300 for rooms up to 465 square feet. Your air purifier may have a special light that tells you when it's time to replace the filter; otherwise, keep an eye on it after three months of use. We only test air purifiers with HEPA filters, as they are considered to be the best for cleaning indoor air. No matter how clean a home is kept, indoor air contaminants are present.
Using an air purifier with a HEPA filter is an effective way to reduce dust mites, animal dander, mold spores, and kitchen vapors.
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