We spend most of our time indoors and the air quality in our homes and offices can be surprisingly poor. Low air quality is common for a variety of reasons, including fire smoke, allergenic pollens and household dust mites, viruses and bacteria, and common household chemicals. Dyson air purifiers improve indoor air quality by removing these pollutants.

Eliminate smoke, dust, pollen and viruses
Particles contain allergens such as bacteria, smoke, house dust mites, pollen and airborne droplets that spread viruses (such as the flu and SARS-CoV-2, which causes COVID-19). Smoke-carrying droplets of bacteria and viruses are located at the smallest end of the suspended particle size range. Allergens are on the larger edge like pollen grains. This can affect the choice of particle filter. If you are worried about smoke or fumes, the best option is a HEPA (High Efficiency Particulate Air) filter.


HEPA filters are effective in trapping small particles. They all meet the minimum standards, but not all HEPA filters are the same. They are numerically ranked based on how effective they are at trapping the smallest particles. H10 and H11 filters are sometimes referred to as "real HEPA" and H13 and H14 filters are sometimes referred to as "medical grade". If your main concern is viruses, bacteria or smoke, look for HE13 filters rated H13 or H14.

Some filter manufacturers use the term "HEPA-like" or "HEPA type", so be careful when choosing it. These are just marketing terms and you do not know how effective a filter will be unless the filter performance is reported by the manufacturer.

Pet owners should also look for a pre-filter purifier. They trap large items such as pet hair before reaching other stages of filtering. If clogged quickly with cat hair, there is no cost for an expensive HEPA filter.

Avoid ozone-producing air purifiers
Ozone protects us from UV rays and is ideal when we are away from the Earth's upper atmosphere. However, ozone is a known lung stimulant that is not in our home. High levels of ozone in our homes can exacerbate asthma symptoms and affect our ability to fight respiratory infections.

Air purifiers are electronically charged using electrostatic precipitators or ionizer technology when pollutants enter the unit and produce a small amount of ozone as a by-product. Many advanced air filters use one or both purification methods (in addition to HEPA and carbon filters) and are difficult to avoid.

However, other air purifiers, known as proprietary ozone generators, produce large amounts of ozone by design. While these purifiers are effective in removing airborne allergens, it is wise to avoid them altogether, as the level of ozone they produce may not be worth it.

The Noise of Air Purifier
Sound is an important factor in choosing an air purifier like levoit lv h133 air purifier from https://www.topairpurifier.org/levoit-lv-h133-air-purifier-review/. If you buy an air purifier with a cover recommended by the manufacturer of 300 square feet and place it in a room of this size, you must operate it with at least one medium fan to get the job done right. However, many units have relatively large fans.

You need to pay close attention to the amount of sound produced by the air purifier. In most cases, only the lowest fan settings are suitable for the bedroom. The higher ones wake you up in the middle of the night and disturb your sleep. If you want your air purifier to work well in the lowest fan mode, buy a unit with a recommended coverage area that is wider than a square foot of your room.