Secondhand smoke contains 7,000 harmful substances, posing serious risks to children and the elderly! Try these tips: ① Open windows for ventilation ② Create a designated smoking area ③ Use Lifubide Air Purifier. Equipped with a medical-grade H13 HEPA filter, it captures 0.1-micron particles, eliminates 99.97% of smoke particles, and monitors PM2.5 in real-time via smart sensors. Night mode operates quietly at just 28 dB. Let Lifubide be your family’s invisible shield, safeguarding every breath 24/7! 💨✨