By muffler you mean silencer. Silencers are almost a metre long. All the fans i've seen even fans in shop that people say are silent are noisy as fuck. I duno why people say that these fans are quiet when the airflow sounds like a gale which is more than noticable if placed near a wall, you can hear the air flow and cool running through solid brick walls and through solid brick roofs so your version of quiet running is very different from mine. Used in a wardrobe these fans make a fucking racket enough for the neighbours to say 'what's that humming' and in my opinion that is not quiet running. What other options are available for people who want to use the smallest extraction fans in very small enclosed spaces and want serious noise reduction. Even pc fans are noisy in very small grow rooms.
MegaOctane12 Reviewed by MegaOctane12 on . Cool Tubes Vs. Cooled hoods... I am thinking about using cool tubes in the future. And what I was wondering is how many lumens do you lose threw the glass tube compared to a regular cooled hood. Is it the same. I heard the cool tubes lose more lumens. But that sounds like bull to me. Because it seems like you could get a cool tube really close. Like inbetween the plants. And standing upright and connected together. Fuck it I'm going tubing!:thumbsup: Still would like to hear anyones opinion who used or uses them. Rating: 5