An overstatement.
The Qwest works for me with my shield all the way down. The face shield has to be closed which makes it hot in the summer. When I crack the face shield I use ear plugs. Had my ears tested; they're excellent for my age, so the helmet works for me.
According to NIOSH and CDC, 2002; for every 3 dBs over 85dB, the permissible exposure time before possible damage can occur is cut in half. OSHA standards dictate that for every 5 dB increase, at levels greater than 90 dB, the duration of allowable exposure is half.
Mary Wade, Au.D (Doctor of Audiology) advises, “What is safe for one set of ears may not be safe for every person or every ear. If, after noise exposure, you notice that hearing seems diminished, your ears feel full and/or you have ringing (tinitus), your ears are sending you a 911 call. If the symptoms are temporary, you know you dodged a bullet. If the changes are permanent, well…then you live with hearing loss and ringing in the ears.”
Go see a Audiology specialist. There are a range of ears. For me a helmet with closed face shield works, for you it doesn't.