Value is not determined by those who set the price. Value is determined by those who choose to pay it.
PM2.5 แ แปแแแแแแแแ แแแแแแแ แแทแแแแแแถแ แแแแผแแแแถแแแปแแแถแ แแทแแแแแแแแแแแแแแแแขแถแแแแแปแแแแแแถแแแ แแแแแแ แ