A store owner puts a COVID-19 face mask warning sign on the front door. Wearing face masks was often required when entering a business during the coronavirus pandemic of 2020.
Red stop sign with stormy sky
Private Property No Trespassing sign
Emergency light flashing in industrial building
Danger Electric Fence sign 4k
On air sign - going off and on - blinking...
red blue lights police beacon on a black background
Time lapse of clouds drifting past a no trespassing sign.
A temporary road construction lighted sign in a large city's downtown district warns passers-by of the dangers of COVID-19.
Illuminated emergency exit sign on the wall, down arrow and running person pointing the right direction to escape in case of danger
close icon cancel sign symbol animation with Alpha Channel.
Traffic light turns from green to red, pedestrian red light for crosswalk.
Close-up of smoke alarm on the ceiling surrounded by white smoke. Stock footage. Fire alarm at the house
Professional woman expresses disagreement with body language
Animation extrusion of symbol of danger. Sign of skull, sign of nuclear danger, sign of warnings. Warning Mark animation
Radiation Sign warning people of possible contamination
Gesture of Disapproval: Be Cautious, Think Twice
warning restricted area sign
Woman waving her finger in denial
Red Traffic Light with a Beautiful Blue Sky
Warning signs in bright red light 4k
woman lifting alert signal yellow triangle
On air light at radio station flashing on and off 4k
Climate Change Concept Background
Red stop sign - zoom in
City street traffic light with buildings in background 4k
Street traffic red light with urban tall building background
Many different car dashboard lights with warning lamps illuminated. Light symbol that pops up on dashboard when something goes wrong with the engine
Yellow factory safety sign on grid at industrial plant machine background. Triangular warning icon information about dangerous automatic mechanism hand image. Safe production beware caution concept
Orange "road work ahead" warning sign, Palm Springs, California
Sign speed limit of 20 kilometers per hour and flashing traffic light. Red and white striped road warning post with orange beacons. Sign and flashing lights warn about working agricultural machinery
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yellow triangle Caution warning Headphone Warning Symbol Sign icon concept animation with alpha channel