Detailed Answer
Yes. Dust hazards: 1. Dust in button gaps causes sticking; 2. Charging contacts oxidize; 3. Poor heat dissipation (internal dust buildup); 4. Sealing ring wear (abrasive dust). Countermeasures: IP6X dust-tight (entire LIDER LD series) + regular air-blowing cleaning. Cement plants/flour mills/foundries must use IP6X; don't use indoor models in dusty environments.
| Hazards | Stuck keys / oxidation / heat |
| Countermeasures | IP6X + air blow |
| Scenarios | Cement / foundry |
Note:Air-blow clean dusty-environment remote controls weekly.