Why do environmentalists say avoid spray cans etc?

Environmentalists often advise avoiding spray cans due to their use of volatile organic compounds (VOCs), which contribute to air pollution and can harm human health. Additionally, the propellants used in spray cans can be harmful to the ozone layer. Many spray cans are also single-use and contribute to plastic waste, exacerbating environmental issues like landfill overflow and marine pollution. Using alternatives, such as pump dispensers or refillable containers, can help mitigate these negative impacts.