Im wary of using new products. How long have PVCu beads been around?
Related Questions
- How are the Puck-ifier & RH Beads different from existing products on the market, like "humidification gels", "crystal humidifiers" and tubes with crystals?
- Why are existing humidification products inferior to the Puck-ifier & RH Beads?
- Im wary of using new products. How long have PVCu beads been around?