Unwanted channel always interferes in my radio

I have a 2 pcs of baofeng mini walkie talkie which our family use to communicate with each other when we are nearby.
When we are home, there is usually a specific channel (442525) that interferes with our devices. It usually happens every 2-5 minutes but there is no whatever sound, it just makes our devices unavailable at those moments.

What is this? How can i block this specific channel (frequency)?

Thanks in advance.

OK… This frequency falls in the 70 cm amateur radio band. What frequencies are you using? Are you all licensed amateur radio operators?

These radios all require a license. You cannot just operate on random frequencies.

In answer to your question, no. There isn’t a way to notch out frequencies.