Dehumidifiers

I'm interested in getting some feedback on dehumidifiers.
First of all has anyone seen a place to buy one locally?
I'd like to check that before I try Amaxon.com.mx or other online.
Second- how about efficacy?
I've had a few items of clothing, pillow cases mold up during the high humidity/rainy reason. I used the dehumidifier "balls" last year and they seemed to help.
Looking to take the next step.
Thanks

Mis dos centavitos.

Never had one or used one here and neither have generations of zihuatanejenses. You're making things too difficult and going against the flow.

That said, any decent A/C should have a dehumidify setting. Have you tried running that once a week or so?