![Black spots of fungal bacteria and mold on a red wall in a house or apartment. The concept of excessive humidity, improper air exchange and condensation. Poor ventilation. Soft focus. Stock Photo Black spots of fungal bacteria and mold on a red wall in a house or apartment. The concept of excessive humidity, improper air exchange and condensation. Poor ventilation. Soft focus. Stock Photo](https://as1.ftcdn.net/v2/jpg/05/13/06/38/1000_F_513063848_g9NeAIc5Z4uAV4mm4B1ZKvH9KA5vmirJ.jpg)
Black spots of fungal bacteria and mold on a red wall in a house or apartment. The concept of excessive humidity, improper air exchange and condensation. Poor ventilation. Soft focus. Stock Photo
![PDF] Ventilation Solutions in Renovated Apartment Buildings in Cold Climate Conditions | Semantic Scholar PDF] Ventilation Solutions in Renovated Apartment Buildings in Cold Climate Conditions | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/2480140867455da1b28da033d8e1cbf5559b3822/5-Figure5-1.png)
PDF] Ventilation Solutions in Renovated Apartment Buildings in Cold Climate Conditions | Semantic Scholar
![Drops and condensation on the window. Fogged window, fragment plastic frame, close-up. Increased humidity in the apartment. Poor ventilation, unventilated room Stock Photo | Adobe Stock Drops and condensation on the window. Fogged window, fragment plastic frame, close-up. Increased humidity in the apartment. Poor ventilation, unventilated room Stock Photo | Adobe Stock](https://as1.ftcdn.net/v2/jpg/05/40/00/50/1000_F_540005064_7PLgc98E3FDDo5jGnrV0N9XFBCykXr65.jpg)