fan on 24/7?

It's little box fan in a small closet on one plant that's on 12/12 light ,a little over 5foot rn. A friend of mine who I trust a lot and grows great plants their self suggest the box fan on low all day and night but I can't help but feel during lights out I should give her some rest from the fan.. All thoughts are appreciated.

Keep it on, plants keep transpiring at lights out.
Also helps strengthens the plant and stops the leaves from having co2 stagnant areas over the leaf surface. Remember plants still grow at night.

Thank you very much, this is exactly what he told me. Double checking even though he's one of the few ppl in real life who's advice is solid.

The better the air movement the better the final results!

Keep your ladies dancing, they love it. Don't over do it or they'll suffer wind burn on the leaves. Later in flowering bouncing your buds around too much will damage pistils.

After my 12/12 cycle is done the only fan running till the light comes back on is my exhaust. Which in turn brings in fresh air and I never get no mold no matter how tight the buds are.
Other fans are off in the dark period.

i leave my fans on all the time, turn my exhaust down to around 30% at night, turn it back up to 90% when the lights come on, never had pm or bud rot. rh is around 40 lights on, may go up to 50 during the night.

Thanks for all of the input. On low it's a pretty light breeze on the plant so I feel like running that all the time should be perfect for her, it's not too intense even on the 2nd higher setting so I'll run it all night.

PigKiller said:

Keep your ladies dancing, they love it. Don't over do it or they'll suffer wind burn on the leaves. Later in flowering bouncing your buds around too much will damage pistils.

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when she is budding would it still be fine to leave it on 24hrs if it's just a light breeze? The lowest setting barely even makes the plant move/shake at all, just makes the leaves dance. Or should I give it some breaks from the fan at that stage? I could always move the fan back to keep good air circulation but not bother the buds..

Air movement is good.
No air movement is bad.

Lucky Luke said:

Air movement is good.
No air movement is bad.

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Makes sense.

I have a question.... Why is it when i turn my fan off at night right after they start drooping? Does any body know?

King4994 said:

I have a question.... Why is it when i turn my fan off at night right after they start drooping? Does any body know?

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The leaves will droop with lights off, but not because of the fans.
I run my fans 24/7, always

they droop at the end of the day because they're tired, just like you, they've been working for 16-18 hours.