As a host on both Love is Blind and The Ultimatum, Nick Lachey has heard his share of dating dealbreakers.

Perhaps, some of the most challenging dating dealbreakers are those surrounding pets, especially when one member of the couple has allergies to their partner's furry friend.

"I feel for people who are sensitive to cat allergies," Lachey tells PEOPLE as an example. "You're constantly reacting and feeling under the weather" if your partner has a feline.

Thankfully, Lachey has a solution for cat allergy sufferers who happen to be dating a cat owner, and the answer doesn't involve a breakup. The 98 Degrees band member recently partnered with Purina ONE LiveClear to spread awareness about the product and launch Purina's LiveClear, Love Clear video series.

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