ID 231617004 © VectorMine | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
heat recovery ventilator hrv system air arrows cold explain filtration save ventilation warm concept energy filter illustration vector comfort diagram flow technical transfer circulation effective pipe structure scheme economy cooling supply generator crossing control circular climate indoor installation fan conditioning intake outline labeled educational fresh ecology temperature saving stale