Is the Purell hand sanitizer compatible with gloves?

Yes, it is compatible with nitrile, vinyl, and latex gloves.

What is the main function of Purell 7751-02 Healthcare Advanced Gentle/Free Foam Hand Sanitizer?

It kills 99.99% of most common germs that may cause illness in a healthcare setting.

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Purell 7751-02 Healthcare Advanced Gentle/Free Foam Hand Sanitizer, 1,200 mL Refill, Fragrance-Free, For ES8 Dispensers, 2/Carton

Kills 99.99% of most common germs that may cause illness in a healthcare setting.
Advanced, fragrance-free hand sanitizer made with ethanol.
Chlorhexidine Gluconate (CHG) compatible formulation.
Compatible with nitrile, vinyl and latex gloves.
Hypoallergenic.
Dermatologist tested.