Weirdly, it works!
Written By: M. Miller, Midland, WA 8/1/2013
I thought having the air sucked thru a little hole would INcrease the noise, but it doesn't! My machine is almost silent with this little cap over the intake. Very pleased!
Not a big difference.
Written By: William, Corona 5/25/2012
Well, at least to me.I put it on my machine, but I didn't think it was very noisy to begin with. Will share a room with my kids on an upcoming cruise and thought it would be quieter for them. Anyway, for the price it wasn't a big deal either way.