84 disinfectant is a chlorine-based disinfectant that effectively kills various bacteria and viruses, including feline panleukopenia virus. According to search results, to completely eliminate feline panleukopenia virus, it is recommended to spray 84 disinfectant on every corner of your home daily for approximately 7 consecutive days. Alternatively, you can use ultraviolet (UV) lamps in conjunction with 84 disinfectant; generally, about 8 hours of continuous light exposure is sufficient to completely eliminate the feline panleukopenia virus.

It's important to note that while 84 disinfectant can kill the feline panleukopenia virus, it can also cause toxic reactions in cats. Therefore, it's crucial to thoroughly rinse off any residual disinfectant after use. Furthermore, because the feline panleukopenia virus spreads through various routes, disinfection alone is insufficient. Good hygiene practices and regular vaccinations are also essential for better prevention.