Window ventilator PO 400

The PO 400 window ventilator is a supply unit for continuous ventilation designed to provide fresh air to residential and non-residential premises. This type of ventilator can be installed in window frames of various sizes in apartments, cottages, and office buildings. The supply unit eliminates the need to open windows while maintaining a supply of fresh air without drafts or street noise. The specially designed construction of the ventilator ensures ease of use, and the built-in dust filter provides clean air indoors.

Mechanical exhaust ventilation systems with natural air supply are designed with exhaust fans installed in the kitchen and bathroom.

The PO 400 is installed in the upper part of the window frame. The maximum air supply provided by a single window ventilator is 20–40 m³/h.

Dirty filters increase air resistance, which leads to a decrease in the supply of fresh air into the room. Filters must be cleaned as they become dirty, but no less than 3–4 times a year. Dirty filters should be rinsed under running water or replaced with new ones.

The ventilator consists of an external hood, a filter, and an internal grille with an adjustment mechanism. The external hood prevents water from entering the room and is equipped with a mosquito screen to protect against insects. The filter cleans the incoming air from dust and dirt, traps excess moisture, and reduces outdoor noise. The internal adjustable grille allows control of the volume and direction of the incoming air.