Pre filter for tent vent

[Catfish22]

I honestly tried to think of a different title that didn't rhyme, but I'm high... so that lasted about 3 seconds.

Anyway, does anyone use a pre filter on the vent screens when the vents are open?

I have a dog and 2 cats so pet dander is a problem. My first carbon filter came with a white pre filter and I didn't realize until too late that it allows a bit of the dander to get through and running 24/7 it clogged up in about 2 months. I noticed because my temps had slowly been increasing and I couldn't figure out why.

The new filter came with a black pre filter and it took about a week to begin to see build up on the pre filter. I can vacuum it off but PIA.
I don't know how everyone else deals with it but perhaps someone has an answer to the dander.
. Thanks!

PS: How do you get changes in your signature block to save and show up? It will let me edit and save info but it doesn't show up on the forum.

[SoOrbudgal]

I do not have filters i never saw a need and i got many pets.

[PLreef]

Do you have your filter on the floor or is it suspended?

[Catfish22]

It is suspended from straps, sir. With about 4 inches of duct to the fan.

[Ellisk]

I never leave my vent flaps open but I do have pre-filters tied to my vent hose intakes. I use an old tee shirt and tie wire. Pic, https://imgur.com/io26X8v And hey, great minds think alike, lol.

[MeEasy]

My tents have the round vent holes with the drawstrings I use a 6 inch in my 4x4 and 4" in the two 2x4s flex ducting (dryer hose) about a 4 foot piece two for each tent. These help keep the light out during lights off especially for flower. I had to put a intake fan on the 4x4 and will probably have to put a second one on the other side to reduce the negative pressure because my tent looks like it is going to implode when I have the exhaust fan on high. Anyways finally to the filters I was first using some pantyhose over the ends of the flex ducting but later changed to these pics below the last pic is what I use I bought one and the ol lady is making me some for the rest I like it because of the strings pull tight into the grooves of the flex pipe.