Test gun range ventilation?

[280plus]

Anybody know how or what instrument I should use? I have an anemometer but it is registering zilch at each port with the ventilation system running which makes me question the meter as I can feel airflow. Minimum standard is 50 FPM. Has anybody here done this before?

[280plus]

never mind... 

Turns out my anemometer will not register below 90 fpm which creates an issue when you want to read 50 fpm. An anemometer that will read in the 50fpm range costs ohhhh, $650.

We have another idea. Blow a puff of smoke at the firing line and if it makes it to the 50' mark in a minute or less, we're good. 

[charby]

never mind... 

Turns out my anemometer will not register below 90 fpm which creates an issue when you want to read 50 fpm. An anemometer that will read in the 50fpm range costs ohhhh, $650.

We have another idea. Blow a puff of smoke at the firing line and if it makes it to the 50' mark in a minute or less, we're good. 

or use atomized baby powder

[AJ Dual]

never mind... 

Turns out my anemometer will not register below 90 fpm which creates an issue when you want to read 50 fpm. An anemometer that will read in the 50fpm range costs ohhhh, $650.

We have another idea. Blow a puff of smoke at the firing line and if it makes it to the 50' mark in a minute or less, we're good. 

That's what I was going to say.

Or just measure the room for it's cu/ft fill the whole room with smoke and time how long it takes to clear.

[280plus]

Good ideas, baby powder. Ever see one of those vids where the baby farts with all the powder on its butt and it makes a puff of powder. That's what I need, powder and a gassy baby. 

[TommyGunn]

If you invite a whole bunch of blackpowder shooters to the range, you will quickly discover how effective the ventilation system is, and how fast it vents the air .....

[280plus]

It's two stage. We have extra exhaust you can turn on if it gets too smoky. Clears pretty fast once it gets turned on. I was reading one article where it talks about using variable speed fans that sense the buildup of particulates in the filters and automatically speed up as the filters become more restricted over time so that proper air flow is always maintained. We ain't got nothin' like that I can tell you.