[{"arm_notes": "nan", "treatment_id": null, "treatment_name": "IIR Surgical mask with Filtering face piece", "treatment_type": "Device", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Peripheral sealing device for surgical mask or filtering face piece", "treatment_type": "Device", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Peripheral sealing device for surgical mask or filtering face piece", "treatment_type": "Device", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Peripheral sealing device for surgical mask or filtering face piece", "treatment_type": "Device", "pharmacological_treatment": "TODO"}, {"arm_notes": "nan", "treatment_id": null, "treatment_name": "Peripheral sealing device for surgical mask or filtering face piece", "treatment_type": "Device", "pharmacological_treatment": "TODO"}]

[{"arm_notes": "", "treatment_id": 1994, "treatment_name": "Ffp2 mask with peripheral sealing device", "treatment_type": "Protective device", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "", "treatment_id": 509, "treatment_name": "Ffp2 mask", "treatment_type": "Protective device", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "", "treatment_id": 1995, "treatment_name": "Surgical facial mask with peripheral sealing device", "treatment_type": "Protective device", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "", "treatment_id": 1250, "treatment_name": "Surgical facial mask", "treatment_type": "Protective device", "pharmacological_treatment": "Non pharmacological treatment"}, {"arm_notes": "", "treatment_id": 1996, "treatment_name": "Ffp2 mask+surgical facial mask", "treatment_type": "Protective device", "pharmacological_treatment": "Non pharmacological treatment"}]