Carbon filter FF AD5M/PRO/X

Carbon filter housing.Mounting screws: 4 * M3 up to 15mm long.I recommend countersunk head screws for the upper filter.I also recommend wrapping the contour with 3-5mm soft foam to reduce efficiency losses.I used a vacuum cleaner filter as a backing and filler for respirators such as these. vacuum cleaner filter (H12): https://ozon.by/product/filtr-universalnyy-dlya-pylesosa-1757448397/activated carbon: https://ozon.by/product/ugol-aktivirovannyy-dlya-filtra-vozduha-0-5-kg-1l-ar-a-1453423730/ The outline of the contents I got