Yes, fog machines can generally be used around pets, but it's important to take certain precautions. Ensure that the area is well-ventilated to prevent the buildup of fog, which could cause respiratory discomfort for pets. Additionally, keep the fog machine fluid out of reach of pets, as it can be toxic if ingested. By maintaining good ventilation and ensuring that pets do not come into contact with the fluid, you can safely use fog machines in environments where pets are present.