As an au pair you will receive full board and lodging with your host family. You will also receive pocket money. That is relatively high when you compare it to the average salary in the Philippines.
Understand that the costs of living are also very high in Europe.
In The Netherlands you will receive 340 euros pocket money per month. That’s the equivalent of P17,000.
Your host family will also pay for your flight ticket, health insurance, visa and Residence Permit and course.