Here you can find information on the individual filter classes:

Filter class G4 (coarse filter)

• Removes coarse particles such as dust, Pollen and fluff.

• Reliably protects the ventilation system from soiling.

• Suitable as a pre-filter or standard filter for domestic ventilation systems.

Filter class M5 (fine filter, medium stage)

• Filters additional smaller particles such as fine dust and pollen.

• Provides better indoor air quality.

• Ideal for allergy sufferers and for year-round use.

Filter class F7 (fine filter, high level)

• Captures even very fine particles such as fine dust, mould spores and larger bacteria, Mould spores and larger bacteria.

• Significantly better air purity - even with more heavily polluted outdoor air (e.g. B. in cities).

• Recommended for allergy sufferers and people with sensitive airways.

Filter class F9 (fine filter, highest level in the living area)

• Very high filter performance, removes even the smallest particles and a large proportion of exhaust particles.

• Provides the cleanest air quality in living spaces.

• Especially suitable for regions with heavy traffic (e.g. along roads or industrial areas).