plug protectors in UPS receptacles?

[5pips49]

I have a UPS that I plug my computer into. It's the kind that's a little smaller than a shoe box and has about 10 receptacles (the part in which you plug in a computer, etc). A lot of dust accumulates on top of it. I am concerned that dust gets into the receptacles. I want to put plug protectors in the receptacles that I am not using. By plug protectors, I mean the plastic pieces that you put in the recepticle to protect it from young children putting their hands into the receptacles. This shows the product that I am talking about.
https://www.target.com/p/safety-1st-plug-protectors-36pack/-/A-14061588#lnk=sametab
Is it ok to use the product like that?

 

[EricT]

Yep, it’s perfectly fine to use those plug protectors in the unused outlets on your UPS. They’re non-conductive and safe, and they can actually help keep dust and debris out, which is a smart move if the UPS sits low or near dusty areas. Just make sure you’re not blocking any ventilation on the unit itself.

 

[5pips49]

Thank you.