Fintie 3-Pack Ultra-Clear HD Screen Protector for 9 Inch Tablet inclu. RCA 9 (RCT6691W3), Dragon Touch N90, Alldaymall 9, iRULU eXpro X1a 9, Polaroid 9 (Check Compatible List in Description)

Fintie Clear Premium Screen Protector is made from superior quality PET film, and specifically designed to fit specific 9'' Android Tablet. It effectively protects the tablet screen from daily scratches, dust and scrapes.
Afunta 9" FC9A23,
AKASO KingPad A90 9",
Alldaymall 9",
Andteck TouchTab 9",
Contixo LA903 9" Tablet PC,
D2 (Digital2) 9" Tablet,
Digital Reins 9",
Dragon Touch N90 9" Tablet PC,
Epassion Eg9 9'',
Goldengulf 9'' ATM7021,
iRulu x1s - 9'',
iRulu 9 inch Tablet Model AL109,
NeuTab N9 Pro / NeuTab N9P 9",
Polaroid PTAB935 9" Android Tablet,
ProntoTec 9 Inch Capacitive Touch Screen Tablet PC,
ProntoTec 9 Inch HD Android Tablet PC,
RCA tablet 9 inch (RCA Tablet with 8GB Memory 9" RCT6691W3),
Riin 9'' A20,
SVP 9",
Tagital T9X 9" Quad Core Android 4.4 KitKat Tablet PC,
Tagital 9" A23,
Tmax Tablet 9" HD,
Weize 9",
Zeepad9XN 9",
ZTO N51 9",

A few tips that may help to avoid the dust and bubbles:

1. Power off your device and place it under bright light. So you will be able to see the dust if there is any.

2. Apply the screen protector in clean environment. You may try to install the screen protector in the bathroom after running the shower for a few minutes.

3. You can use sticky tape to remove the dust off the screen. Remember, the most important is there is no dust on the screen before you apply. No dust no bubbles.

In addition, most of the bubbles will go away by themselves after a few days of normal use if there is no dust in the bubbles.