Axial wall- and ceiling-mounted fan VENTS 100 D | official VENTS website
46 CFR Ch. I (10–1–14 Edition) § 127.250
Vents 100 CFT turbo ventilátor
Abestorm Crawlspace Ventilation Fan, Crawl space Ventilator Fan with Humidistat, Temperature Controller, Moisture Reducing, for Crawl Spaces Garage Attic Hydroponics Grow Tents, 240CFM (Air-out): Amazon.com: Tools & Home Improvement