"Compressed air horns may produce a sound at 100 dB or higher," the letter reads. "When an individual is exposed to long, repeated or close-proximity exposure to decibels higher than 70 dB ...
Heather Morrison sent a letter to Hockey P.E.I. in December that described the health risks associated with the use of such noisemakers. "Compressed air horns may produce a sound at 100 dB or higher," ...