Household air purifiers are used for efficient, multi-stage air purification. Unlike air washers, these machines have no impact on the air humidity level.
Different types of filters can be used in different models of air purifiers. As a rule, the minimum for this means an input, charcoal, and HEPA filter. But besides this photocatalytic and electrostatic filters can also be used (for example, as in the Edelweiss series). Additional options that increase the effectiveness of purification could be air ionization and having a built-in UV lamp.
Modern air purifiers are devices that have a wide range of control system possibilities. Many of them can have a timer installed, a night mode, change the operating speed, have a convenient control panel, etc.