Dust accumulation, mold spores, microscopic trash particles, insects and their parts — sounds inspiring, isn't it? This entire package is right there — inside the ventilation system of your house. Do you remember when the ventilation was last cleaned and if you ever did it at all. Do you want to take a deep breath now? It's obviously unlikely. We understand that, but keep calm — we don't try to scare you or something like that. We just want to draw your attention to possible reason of several inconveniences, which may overshadow your everyday life.
We are talking about: